/**
 * Created by fq on 2018/1/10 0010.
 */
'use strict';
angular.module('indexApp')
//更改数字为路由地址
    .filter("changeTextFilter", function () {
        return function (a) {
            switch (a) {
                case 1:
                    return 'video';
                case 2:
                    return 'operating'

            }
        }
    })
    //列表项内容限制
    .filter("limitFilter", function () {
        return function (content) {
            if (content) {
                if (content.length > 50) {
                    return content.slice(0, 50) + '...';
                } else {
                    return content;
                }
            }
        }
    })

    .filter("numberFilter", function () {
        return function (content) {
            return Number(content)
        }
    })
    .filter("chinaFilter", function () {
        var digitUppercase = function(n) {
            var fraction = ['角', '分'];
            var digit = [
                '零', '壹', '贰', '叁', '肆',
                '伍', '陆', '柒', '捌', '玖'
            ];
            var unit = [
                ['元', '万', '亿'],
                ['', '拾', '佰', '仟']
            ];
            var head = n < 0 ? '欠' : '';
            n = Math.abs(n);
            var s = '';
            for (var i = 0; i < fraction.length; i++) {
                s += (digit[Math.floor(shiftRight(n,1+i)) % 10] + fraction[i]).replace(/零./, '');
            }
            s = s || '整';
            n = Math.floor(n);
            for (var i = 0; i < unit[0].length && n > 0; i++) {
                var p = '';
                for (var j = 0; j < unit[1].length && n > 0; j++) {
                    p = digit[n % 10] + unit[1][j] + p;
                    n = Math.floor(shiftLeft(n, 1));
                }
                s = p.replace(/(零.)*零$/, '').replace(/^$/, '零') + unit[0][i] + s;
            }
            return head + s.replace(/(零.)*零元/, '元')
                    .replace(/(零.)+/g, '零')
                    .replace(/^整$/, '零元整');
        };
        // console.log(digitUppercase(100111));
        // console.log(digitUppercase(7.52));
        // console.log(digitUppercase(951434677682.00));
        // 向右移位
        function shiftRight(number, digit){
            digit = parseInt(digit, 10);
            var value = number.toString().split('e');
            return +(value[0] + 'e' + (value[1] ? (+value[1] + digit) : digit))
        }
        // 向左移位
        function shiftLeft(number, digit){
            digit = parseInt(digit, 10);
            var value = number.toString().split('e');
            return +(value[0] + 'e' + (value[1] ? (+value[1] - digit) : -digit))
        }
        return function (n) {
            return digitUppercase(n)
        }
    })